module PraiseTreadHelper
  #added by william
  def is_praise_or_tread(object,user_id)
    @obj_type = object.class
    @obj_id = object.id
    @is_praise = PraiseTread.find_by_sql("select praise_or_tread from praise_treads where user_id=#{user_id} and " +
                                 "praise_tread_object_type='#{@obj_type}' and praise_tread_object_id=#{@obj_id}")
    return @is_praise
  end
  #end

  def get_praise_num(object)
    @obj_type = object.class
    @obj_id = object.id
    @record = PraiseTreadCache.find_by_object_id_and_object_type(@obj_id,@obj_type)
    if @record
      # case flag
      # when 1
        # return @record.praise_num.nil? ? 0 : @record.praise_num
      # when 0
        # return @record.tread_num.nil? ? 0 : @record.tread_num
      # end
      return (@record.praise_num.to_i-@record.tread_num.to_i)
    else
    return 0
    end
  end

end
